15points+brainliest!! please help asap!!

Pythagorean theorem:
a^2 + b^2 = c^2
4^2 + 3^2 = c^2
16 +9 = c^2
25 = c^2
c = 5
Answer:
B: 5
Step-by-step explanation:
use rise over run by connecting the two ends of the line to make a right triangle shape. The side that is the least amount of squares away is a and the longest leg of the triangle is b and the slanted part is c. You are using the pathagreum theorem.
1. Plug your a and b values in
(3)^2 + (4)^2 = c^2
Which is simplified down to 9 + 16 = c^2
2. Add
25 = c^2
3. Square root both sides to get rid of the ^2 on the c
√25 = c
4. Solve
c = 5 which is the length of the line!!
I hope this helps :)